Re: [PATCH v3 1/2] dt-bindings: pwm: Add Xilinx AXI Timer

On Tue, 11 May 2021 15:12:37 -0400, Sean Anderson wrote:

This adds a binding for the Xilinx LogiCORE IP AXI Timer. This device is
a "soft" block, so it has many parameters which would not be
configurable in most hardware. This binding is usually automatically
generated by Xilinx's tools, so the names and values of some properties
must be kept as they are. Replacement properties have been provided for
new device trees.

Because we need to init timer devices so early in boot, the easiest way
to configure things is to use a device tree property. For the moment
this is 'xlnx,pwm', but this could be extended/renamed/etc. in the
future if these is a need for a generic property.

Signed-off-by: Sean Anderson <redacted>
---
How should the clocking situation be documented? For the moment I have
just left clock as optional, but should clock-frequency be documented?

Changes in v3:
- Mark all boolean-as-int properties as deprecated
- Add xlnx,pwm and xlnx,gen?-active-low properties.
- Make newer replacement properties mutually-exclusive with what they
  replace
- Add an example with non-deprecated properties only.

Changes in v2:
- Use 32-bit addresses for example binding

 .../bindings/pwm/xlnx,axi-timer.yaml          | 142 ++++++++++++++++++
 1 file changed, 142 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pwm/xlnx,axi-timer.yaml

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:
./Documentation/devicetree/bindings/pwm/xlnx,axi-timer.yaml:16:9: [warning] wrong indentation: expected 10 but found 8 (indentation)

dtschema/dtc warnings/errors:
Documentation/devicetree/bindings/pwm/xlnx,axi-timer.example.dts:49.37-57.11: ERROR (duplicate_label): /example-1/timer@800e0000: Duplicate label 'axi_timer_0' on /example-1/timer@800e0000 and /example-0/timer@800e0000
ERROR: Input tree has errors, aborting (use -f to force output)
make[1]: *** [scripts/Makefile.lib:380: Documentation/devicetree/bindings/pwm/xlnx,axi-timer.example.dt.yaml] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:1416: dt_binding_check] Error 2

See https://patchwork.ozlabs.org/patch/1477288

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit.